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In this video, we will talk about the principle of pH calibration. We're still using the Gravity: Analog pH Sensor/Meter Kit V2 to measure the pH of the solution. DFRobot pH sensor is commonly used in various applications such as aquaponics, aquaculture, and environmental water testing. Gravity: Analog pH Sensor/Meter Kit V2 ► https://bit.ly/3Aw1aMN | DFRobot | Facebook

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